Canon iR2020 Series Service manual

Sep 14 2005
General Timing Chart / General
Circuit Diagram
iR2020/2016 Series

IMPORTANT
This documentation is published by Canon Inc., Japan, to serve as a source of reference for
work in the field.
Specifications and other information contained herein may vary slightly from actual machine
values or those found in advertising and other printed matter.
Any questions regarding the information contained herein should be directed to the Copier Service
Department of the Sales Company.
This documentation is intended for all sales areas, and may contain information not applicable
to certain areas.
Reproduction without permission not allowed.
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
COPYRIGHT 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Contents
1 General Timing Chart ............................................................................................................................. 1
At Time of Printing................................................................................................................................. 1
Reader Unit ........................................................................................................................................... 2
2 General Circuit Diagram......................................................................................................................... 5
General Circuit Diagram........................................................................................................................ 5

1
1 General Timing Chart
At Time of Printing
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
2 Prints, Continuous, Cassette 1
F-1-1
STBYLSTRPRINTWAIT STBY INTR
Static eliminator bias
Main motor
(M204)
Fixing motor
(M201)
Scanner motor
Laser
TOP signal
Cassette 1 pickup solenoid
(SL202)
Cassette feed clutch
(CL202)
Registration paper sensor
(SR209)
Registration clutch
(CL203)
No. 1 delivery sensor
(SR203)
Primary AC bias
Fixing film bias
Primary DC bias
Developing AC bias
Developing DC bias
Transfer bias
Main power switch ON Print command received
*1: Horizontal synchronization control
*2: Automatic photocurrent control (APC)
*3: Cleaning bias
*4: Target temperature control
*5: Temperature control in accordance with the fixing mode
*1 *1 *1
*1 *2
*3 *3
Fixing heater
(H1/H2) *4 *4 *5

2
Reader Unit
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
Basic Sequence of Operation (in response to a press on the start key; book mode; 1 original)
F-1-2
Basic Secure of Operation (in response to a press on the start key; ADF mode, 1 original )
F-1-3
SCRWSCFWSTBY STBY
: Backward movement
: Forward movement
Start key
ON
Reader motor
(M401)
LED
CISHP sensor
(SR401)
Leading edge
of original
Shading
position Shading position
Trailing edge
of original
Shading correction
SCFWSCRWSTBY STBY
: Backward movement
: Forward movement
Start key
ON
Reader motor
(M401)
LED
CISHP sensor
(SR401)
Stream reading
position Trailing edge of original
Shading
position Shading position
Shading correction

3

5
2 General Circuit Diagram
General Circuit Diagram
General Circuit Diagram 1
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-1
TP
M
NO
COM
NO
COM
M
GND SNSPOW
321
123
321
+3.3V
12
321
GND
/ZEROX
H N
GND
GND
+5R
GND
5V
GND
+3.3V
GND
GND N.C N.C
GND SNSPOW GND
/VDD1 LASER_CONT0 LASER_CONT1 LASER_CONT2 VDD2 /VDD2 PWCHG
PSIZE4 PSIZE3 PSIZE2 SNSPOW GND TN_FULL
/TRNFOT /TRCHG TRCRNT /TRPWM /TRPFOT /DISDCFOT TNRCHKT TNRCHKD /DVACFOT /DVACON /DEVDCPWM /DVDCFOT /PRACFOT /PRACON
PRACMONI
/PRDCPWM /PRDCFOT
JP3,4 Tr3
+5R
GND
120/200V
GND
GND
GND
GND
GND
DOPEN
H2DRV
H1DRV
RLDRV
GND
+3.3V
GND
5V
/DISPWM
JP9,10JP7,8
JP1,2
+3.3R
76543
4321
4321 321
321
12
+24R
GND
GND
8
+3.3R /BDI GND
VDD1
GND +24V P_FG
J20J21
+5VR
/ESS
+3.3R
+5R
+24R
+24R
+24V
CAS_P_SNS GND
JP5,6
SNSPOW PSIZE1
+5R M_TH GND S_TH
THCNCT GND EXP_P_SNS FILM_SENS
N.C
H1DRV
H2DRV
H
+24V +24R
J14
J16
+24V
Sensor
BD
Polygon
Motor
(Connect To J54)
To Heater PCB
DRUM
Development
Charge
Remaining
Detection
Copy
Neutralization
Contact Plate
Fixing Bias
Waste Toner Full
Detection Sensor Cassette 1 Size Detection Switch
Cassette 1 Paper
Sensor
A /A B /B
1012 11 9
+3.3R
+3.3V
GND
XPCI
/P_ACC /P_DEC
FK2-1058
J17
J15J10
Left Door Switch
Front Cover Switch
To Option Power
Supply PCB
To Reader Controller PCB
To Reader Controller PCB
To NCU PCB
To Heater PCB
(Connect To J53)
/ESS
+3.3R
GND
H
N
VH-
VH+
+24V
+24V
GND
GND
To Image Processor PCB
Scanner Unit
Laser Unit
HVT PCB
Power Supply PCB (1/3)
MCT
TH1 TH2
456
J221
J261
EXP2_P_SNS
No. 1 Delivery Sensor
SR203
SR206
121110982345617
J217
18 16
1
2
3
4
5
6
7
8
9
10
11131517
1214
J100
123
J263
231J30M
123456
J255D
123
J216
12345678
J213
12345
J19
17 16 15 14 13 12 11 10 9 8 2345617
J 215
12345678
J205
123
J2
13121110982345617
J206
1234567 J252L
21 J32
4321
J251
231
J13
FT1
MT1
21 J1919
21 J1918
17 16 15 14 13 12 11 10 9 8 2345617
J11
3 2 1
P1
18 16
1
2
3
4
5
6
7
8
9
10
11131517
1214
J214
123
J18
1234
J202
54321
M203
12345 J3
J256LH
231
J12
1
SW2
1
SW3
1234
M201
SR101
SR204
123
J260
J252DH
7654321 J252D
12345
J262
12345
J101
J255DH
123
J256L 123
J256D
FT2
12
TP1
231J30F
21 J31
MT5
MT4
MT2 MT3
SR202
123
J253
123 J503
13 12 11 10 9 8 2345617
J601
21
H1
21
H2
Main
Thermistor Sub
Thermistor
Fixing Film
Speed Sensor Fixing Delivery Sensor
DC Controller PCB (1/3)
Fixing Motor
Fixing Unit
Film Bias
SW4

6
General Circuit Diagram 2
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-2
M
CL CL
SL
CL
SL
GND +24R
2121
3
N.C N2_P_FULL N2_PASS_SNS N2_P_DET N.C N2_SL GND GND SNSPOW +3.3R /DUP_STB DUP_CLK DUP_RXD DUP_TXD
12
J209
21
MULTI_SL +24V MFP_CL +24V SNSPOW GND
+5R MD0 MD2 FW /RES
SNSPOW REG_SNS GND SNSPOW RG_CL +24V TP_CL
GND +24R M_FG /M_DEC /M_ACC GND FIN_TXD FIN_RXD FIN_D_E GND +5R
Main Motor
Cassette 1 Pickup Solenoid Registration Clutch Vertical Path Clutch
Registration Paper Sensor No. 1 Paper Full Sensor
J210 J211
GND +24V EXP_FULL_SNS +24V
Manual Paper Sensor Manual Pickup Clutch Heat Discharge Fan
FAN_LOCK GND FANDRV
PICKUP_SL
MULTI_P_SNS
1234567891011
123456789234516
J203 J204 J218
ENGINE_D_EN
Manual Pickup Solenoid
To Finisher To Duplex
To Inner 2Way Tray
123
J212
12345
J201
J208
123
J278
81234567910
J286H
10 9 8 2345617
J219
132
J265D
23412341
21
J285D
J285DH
21 21
21
J284D
123 J277L
J277DH
231J277D
10982345617
J286D
J286DH
J284DH
12
SL202
CL201
J265DH
SR208 SL201
21
CL202
21
CL203 SR209
1 2 3 J279
321
FM1
1234567
J259
7653214
M204
SR207
1 2 3 J264
DC Controller PCB (2/3)
1234567

7
General Circuit Diagram 3
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-3
PSPSPSPS PSPS
M
PS
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
2
1
A
15
421
MODE
1234
23456781910111256791012
GND GND
+24V RMOT_B RMOT_IA RMOT_IB KMOT_A KMOT_B LAST SIZE_W1 SIZE_W2 SIZE_L1 SIZE_L2 REG READ EXIT EMPTY SG GND +24V RK_ON1 KMOT_IB KMOT_IA /RMOT_B /KMOT_A /KMOT_B +24V +24V GND GND /RMOT_A RMOT_A
1314
GND VREF LEDR2 LEDG2 LEDB2 LEDR1 LEDG1 LEDB1 GND CLK+ CLK- GND SP+ SP- GND VIN3 GND VIN2 GND VIN1 GND VIN0 GND GND
J411 J410
B A /A
+3.3R +3.3R +3.3R +5R GND GND
GND RTP1BPWM RTP1BX RTP1B RTP1APWM RTP1AX RTP1A GND DOUT7 DOUT6 DOUT5 DOUT4 GND DOUT3 DOUT2 DOUT1 DOUT0 GND SIDATAO SIDATAI SILOAD SICLK GND SVCLK- SVCLK+ GND XHSYNCI XVSYNC XHSYNCO GND
1234
3
11 8
ADF_SENS +24V +24V STAMP
HP_SENS SIZEON
CIS
CIS HP Sensor Copyboard Cover
Open/Closed Sensor
(rear)
Copyboard Cover
Open/Closed Sensor Reader Motor
Reader Controller PCB
Image Processor PCB (1/5)
+3.3R +3.3R +3.3R
AB,INCH/AB INCH/A
Original
Sensor 7
Original
Sensor 6
Original
Sensor 4
Original
Sensor 3
Original
Sensor 5
Original
Sensor 2
Original
Sensor 1
AAB,INCH/AB,INCH/A
ADF_COVER GND GND +3.3R
SIZE0 GND SIZE1 GND SIZE0 GND SIZE2 GND SIZE3 GND SIZE2 GND HP_SENS GND GND GND SIZE3 GND /B
AP_SENS READER_RES* DES GND RTP2A RTP2AX RTP2APWM RTP2B RTP2BX RTP2BPWM ADF_READ ADF_REG DS ADF_EXIT ADF_STAMP
Power Supply PCB (2/3)
Reader Unit
SIZEON SIZEON SIZEON SIZEON SIZEON SIZEON SIZEON CVR_SENS0 CVR_SENS1
Document Size Sensor
To ADF Unit
18
19
20
21
22
23
24
25
26
27
28
29
30
J412
J460
1
2
3
4
5
6
7
8
9
10
111315
1214
J403
1234
J401
1234
J402
1234
J409
123456
J405
123
J406
7654321
J1928
1234567
J1927
7654321
J413
123456
J1926
2434 32 30 28 26 20 18 16
1
2
3
4
5
6
7
8
9
10
111315171921232527293133
121422
J404
654321
J407
1234
J21
321
J1923
123
J1924
321
J1925
SR408
123
J454
654321
M401
1234
J458D
123
J457
123
J456
SR406
1234
J20
SR402 SR403
1
2
3
4
5
6
7
8
9
10
11 13 15
12 14
J308
24 3432302826201816
1
2
3
4
5
6
7
8
9
10
11 13 15 17 19 21 23 25 27 29 31 33
12 14 22
J309
123
J455
123
J453
123
J452
123
J451
SR407SR405
SR401
SR404
J458DH
SR409 SR410
2430 28 26 20 18 16
1
2
3
4
5
6
7
8
9
10
11131517192123252729
121422 J408

8
General Circuit Diagram 4
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-4
USB1.1
USB2.0
Board to Board
NCU PCB
Modular PCB
DC Controller PCB (3/3)
Power Supply PCB(3/3)
Image Processor PCB (2/5)
Modem PCB
Soft-ID PCB Card
Reader Network Board
GND(3.3V) GND(3.3V) GND(5V)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
EXA1 /WR /RD /MPIORST /MDMRST GND GND GND GND AGND +24V +3.3V +3.3V BUZ CI2 CI1
12345678910
DGND N.C
1
2
3
4
5
6
7
8
9
10
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
GND
+3.3V +3.3V
/SIDCNCTN SIDCLK SIDCS GND
2
1
J1
VDO1 /VDO1 GND VDO2 /VDO2 GND /BDO GND /SCLK /SC MFP_SLEEP /CCRT GND
12
J1802J1804 J1803
J1203
5V
IPSEL LPL2 LPL1 HOOK2 HOOK1 N.C LPRD CAIDD CMLD HRD PRD SRD DCLIM N.C CIVS VCC DGND AVCC +12V ANLGIN TXOUT RXIN
CT2
T1
T2
N.C
L1
L2
VO1
VO2
J303
CT1 VHGND
VH
5V
+3.3V +24V 3.3NCU
5NCU
SW
SW REG
SW
SW
5V
+3.3V
/NEX_RES_OUT
11
12
13
14
15
16
17
18
1921
20
23
22
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
J313
CI1 CI2
+3.3V
5V
+24V
AGND 5V
5V
GND
/FAX_D /ESS /CSMDM EXA2 EXA3 EXA4 EXA5 EXA6 EXD0 EXD1 EXD2 EXD3 EXD4 EXD5 EXD6 EXD7
+12V
VBAT+
VBAT-
J1200
ESS SIDDOUT SIDDIN COIN-COUNT COIN_RXD COIN-TXD +5V GND
J301
HOSTS DEVICE
+5PNL
+3.3PNL
GND(5V) GND(3.3V) XPCI +3.3V +3.3V
J1202
5V 3.3V
Speaker
123456
J1921
654321
J1201
1234567
J1922
12 J4
12
J311 12 11 8 1234567910
J310
14 13 12 11 10 9 8 2345617
J304A
7165432891011121314
J304B
12345
J317
16
1
2
3
4
5
6
7
8
9
10
11 13 15 17
12 14
J314
87654321
J315
7654321
J1800
1097654321 8 11 12
J10
1413121110982345617
J1300A J1300WH
7165432 8 9 1011121314
J1300B
54321
J1930
21
J1204
21 J14
12345678
J1 16
1
2
3
4
5
6
7
8
9
10
11131517
1214
J207

9
General Circuit Diagram 5
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-5
GND
GND GND GND EXD7 /CSCOUNTER EXA10 /RD EXA9 EXA8 +3.3V +3.3V GND GND GND GND EXA0 EXA6 EXA7 EXA12 EXA14 GND
Board to Board
Image Processor PCB (3/5)
Counter PCB
BBBBBBBBBB
10 11 12 13 14 15 16 17 18 19 20
AAAAAAAAAA
A4 A5 A6 A7 A8A1 A2 A3 A9
A
10 11 12 13 14 15 16 17 18 19 20
B1 B2 B3 B4 B5 B6 B7 B8 B9
B
BBBBBBBBBB
10 11 12 13 14 15 16 17 18 19 20
AAAAAAAAAA
/RD /WR /SERIAL_D GND GND +3.3V +3.3V
123456789101112131415161718192021222324252627282930
123456789101112131415161718192021222324252627282930
J312
GND GND GND /UARTINT GND EXD6 EXD5 EXD4 EXD3 EXD2 EXD1 EXD0 /UARTCS EXD7 EXA2 EXA3 GND
A4 A5 A6 A7 A8A1 A2 A3 A9
A
10 11 12 13 14 15 16 17 18 19 20
B1 B2 B3 B4 B5 B6 B7 B8 B9
B
J316
J1
Board to Board
/UARTRST EXA1
GND EXA1 EXA2 EXA3 EXA4 EXA5 EXD1 GND EXD2 EXA13 /WR EXA11 /COUNTER_D EXD0 EXD6 EXD5 EXD4 EXD3 GND
GND GND EXA4 EXA5
J1500
GND PRDY_COIN CRDY_COIN PRDY_CONT CRDY_CONT GND TXD RXD
Serial PCB
To Coin Vendor
716543289
J1920
982345617
J1501

10
General Circuit Diagram 6
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-6
J1650
OP_DETECT OP_COVER1 OP_COVER2 /COPY_LED /FAX_LED /DIRECT_LED /STAMP_LED KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7 KD4 KD5 KD6 KD7
22 21 20 19 18 17 16 15 14 13 12 11 10 987654321
GND GND +5PNL
FAX Panel PCB
Image Processor PCB
(5/5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
12345678910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
LCD6 LCD5 LCD4 LCD3 LCD2 LCD1 LCD0 GND E_LCD RS_LCD XRESET N.C. /ESS_KEY POW_LED XCS_LCD QVGA N.C. DCLK-PGI GND RXD-PGI GND TXD-PGI +5PNL +3.3PNL LCD7 GND +5PNL
J1601
J318
Operation Panel PCB

11
General Circuit Diagram 7
iR2016J / iR2016 / iR2020 / / iR2016i / iR2020i
F-2-7
+24V
1 1
2 2
1 1
2 2
1 1
2 2
1 1
H3
1212J1914
2 2
GND
H N
H4
H6 H7 H8 H9
CT
N H
N H
DF7
J1912
To Power Supply PCB
To Power Supply PCB Cassette 1 Heater Cassette 2 Heater Cassette 3 Heater Cassette 4 Heater
Heater PCB
Reader
Heater 1 Reader Heater 2
132
J1905
231
J1901
12
J1902
231
J1903
21
J1911
12 J1915
231
J17
24
31
SW100
12
J15
12 J1913
ET1932
ET1931

12

Sep 14 2005